Raker gauge



July l2, 1938. c; R. EDWARDS RAKER GAUGE Filed Dec. 9. 1936 2 Sheets-Sheet 1 ...AEEEE l v Inventor Cecz'lZZ/'dward;

Attorneys Jl-llY 1 2, 1938- c. R. EDWARDS 2,123,555

BAKER GAUGE Filed Dec. 9. 193e 2 shets-sneet'z 2 y 24 pl/ff 5 6v 2. J 7 -6 7 1 A -l 1 1 v A L J" i Inventor Ceca/'Z E Zvdwzds A orneys Patented July 12, 1938 y UNITED STATES PATENT OFFICE RAKER GAUGE Cecil R. Edwards, Lacomb, Oreg., assignor of onehalf to` Elmer 0. Ayers, Lacomb, Oreg.

Application December 9, 1936, Serial No. 115,027 2 Claims. (Cl. 33-202) My invention relates generally to improvements tip end of the filing plate 4. The plate has a in raker gauges, and an important object of the gauging pin arch 9 in which is screwed a gauging invention is to provide a gauge of this type which pin I which is screwed through the inner end of simplifies saw filing and brings thereto a greater the arch 9. The arch is held in place on the plate 5 degree of accuracy and speed, to such van extent 5 with screws II and I2. The gauging pin II) is lo- 5 that any inexperienced saw ler can perfectly cated on the side of theframe I opposite to that le a saw. on which the filing slot 4" is disposed and for Another important object of my invention is to engagement with the teeth of a saw when the adprovide a gauge of the character indicated which jacent side of the plate 4 is disposed at against is adjustable in such a Way as to enable ling the the saw blade. f

saw for special use with different wood or timber, An adjusting screw I3 is threaded through the or to suit diierent workers. frame I from the. bottom of the latter to bear Other important objects of my invention will against the tip 5 and this screw has a head havbe apparent from a reading of the following deing circumferentially spaced symbols thereon,

5 scription taken in connection with the drawings, which cooperate with and are regstrable with 15 wherein for purposes of illustration I have shown a zero and the circumferentially spaced numera preferred embodiment of my invention. als l to 9 on the dial I4 on the bottom of the In the drawingszframe, which dial surrounds the hea-d of the ad- Figure 1 is a general side elevational view of justing screw. j the embodiment. The adjusting screw is provided with a thread 20 Figure 2 is a top plan view of Figure 1. which runs 32 threads to the inch. The arrange- Figure 3 is a bottom plan View of Figure 2. ment is such that one completed revolution of Figure 4 is a longitudinal sectional View taken said screw moves the lling slot one thirty-second through Figure 2 approximately on the line 4 4. of an inch.

Figure 5 is a transverse vertical sectional View When it is desired to swage the raker teeth, the 25 taken through Figure 4 approximately on the line adjustingY screw I3 is turned to adjust the tip 5, 5 5 and looking toward the left in the direction and hence the ling slot 4, in accordance with of the arrows. the length of the raker tooth desired and by reg- Figure 6 is an enlarged longitudinal sectional istering the zero on the head of said screw with view taken through Figure 2 approximately on the appropriate number on the dial I4. The 30 the line 6-6A. gauging pin I0 is set a little higher than the set- Figure 7 is a perspective view of one of the bearting of the filing slot 4". The gauge is then posiing plates. tioned on the saw blade with the plates 2 and 3 Referring in detail to the drawings, the numeral resting on the saw teeth, the ling slot side of I generally designates the frame of the gauge the plate 4 at against the saw blade and a se- 35 which may be of any approved pattern and be lected raker tooth extending through said slot, to provided with bearing plates 2 and 3, which form thereby determine the depth to which the para straight edge to rest on the saw teeth. Seticular raker tooth concerned is to be swaged cured to the upper face of the bearing plate 3 is down. The gauge is then removed and the tooth a plate 4 of resilient metal, the inner end of which swaged by hammer blows, in the usual manner, 40 projects into a gap 6 which is formed in the frame. and gauged by the screw I 5 by reversing the gauge The plate 4 is slotted as shown at `4" along one to locate said screw ID over said tooth. When side of the frame I and the width of the slot is the tooth has been swaged to a depth suflicient sufcient to permit the raker tooth of the saw to for the screw Il) to just clear the same, the gauge pass therethrough, said slot 4 being a ling slot is applied in the rst described position with the 45 for the raker tooth. The inner end of this swaged tooth extending through ling slot 4". plate has an inclined surface 4 to give clearance Due to the gauging by the pin II] the tooth will to the points of the raker tooth when in place extend through said slot 4" for dressing 01T by for gauging the raker tooth. ling.

The plate 4 is secured to the frame With screws Advantages 0f my mDFOVemeIlt raker gauge 50 I and 8 which pass through the plate 3 and se- Will be apparent when it is considered that where cured to the upper face of the plate 2 is a plate the filing iS being dODe fOl eight 0I' ten men,

5 also of resilient metal the inner end of which .several of the men will want rakers of different projects into the gap 6 formed in the frame. This lengths. With the invention at hand, it is possible plate has a curved tip 5 which hooks under the to adjust so as to gauge a raker for any desired 55 length quickly and accurately, so that the filing may be started and completed within a minimum space of time. Another advantage of the present invention is that it enables putting a lead in cross cut saws. For instance, if Swaging with an adjustment of the dial to (3), the procedure is t0 nd the center raker on the saw, and then swage from the center raker to the end, utilizing the filing slot to dress off the points of the rakers, then turn the adjusting screw to (3l/2) and swage from end faces to the center raker. This indicates a three and one-half swage from end of the saw to the center raker. The filing slot is then utilized to dress the points of the raker and the adjusting screw is turned back to (3) again. The same thing is done on the other end of the saw, and by following the same operation the desired lead may be obtained.

Although I have shown and described herein a preferred embodiment of my invention, it is to be denitely understood that l'. do not desire to limit the application of the invention thereto, and any change or changes may be made in the materials, and in the structure and arrangement of the parts, within the spirit of the invention and the scope of the subjoined claims.

What is claimed is:-

1. A raker tooth gauge for saws comprising a flat body adapted to be positioned flat against the saw and having in one edge thereof a concave portion, a pair of plates of resilient metal secured to said edge upon opposite sides of said portion, respectively, to form a straight edge for resting on the teeth of the saw, said plates having opposed coengaging ends overlapping over said portion, the outermost end of one plate having a slot therein at one side of said portion and laterally offset from the underneath end to receive a raker tooth therein, and a set screw threaded through said body from the opposite edge thereof into engagement with the underneath one of said ends.

2. A raker tooth gauge for saws comprising a flat body adapted to be positioned flat against said saw and having in one edge thereof a concave portion, a pair of plates of resilient metal secured to said edge upon opposite sides of said portion, respectively, to form a straight edge for resting on the teeth of the saw, said plates having opposed coengaging ends overlapping over said portion, the outermost end of one plate having a slot therein at one side of said portion and laterally oifset from the underneath end to receive a raker tooth therein, a set screw threaded through said body from the opposite edge thereof into engagement with the underneath one of said ends, an-d an arch-shaped member secured to the first-mentioned edge of the body to extend therefrom along side the concave portion and having a gauging pin threaded therein to extend along side said portion on the side thereof opposite the slot.

CECIL R.. EDWARDS. 

